Valve spring



J. H. H. VOSS VALVE SPRING July 22 1924. 1,592,353

Filed Feb. 17. 1922 wi-tnesses. Inventor. WW fl Q 1, hwm d Patented July 22, 1924. l V g l,5 02,363

STATES PATENT OFFIQE,

JOHANN HEINRICH HERMANN VOSS, OF NEW YORK, N. Y.

VALVE SPRING.

Application filed February 17, 1922. Serial No. 537,346.

To all whom it may concern: In the drawings affixed to this specificaaid Be it known that I, JOHANN HEINRICH tion and forming part thereof, a spring em- HERMANN Voss, citizen of the United States, bodying my invention and a cap in which and a resident of New York, in the county said spring may be housed, are illustrated of New York and State of New York, have by way of example.

invented certain new and useful Improve- F 1g. 1 is an elevation of my improved 45 ments in Valve Springs, of which the folspring, lowing is a specification. Fig. 2 is a section of a valve cap.

My invention relates to valve springs and The ends 1 and 4 of the spring shown in more particularly to springs for automatic 'Fig. l are preferably ground flat in order ring plate valves. In such valves, heretoto facilitate their joining together. lVhen fore, recesses were formed in the valve cap the ends have been so joined, the spring and spiral or conical springs inserted in said forms an annulus which may be inserted in recesses. The ends of said springs abut one of the annular grooves 3 and 4 of the against the ends of said recesses, while the cap 5, as indicated at 1 and 2 in Fig. 2.

central portion of the springs projects from The spring is provided with a plurality. 5 the cap and engages the plate valve. of undulations 2, 3, 5, 6 and more. In op The machining of such recesses is tedieration, these undulations will alternately ous, as they have to be machined separately project from the face of the valve cap, as and their ends have to be formed by drilling. shown on the left in Fig. 2, and exert pres- It is an object of my invention to oversure on the valve plate or plates, not shown, come these drawbacks and to provide a or they will be concealed in the groove or spring which may be inserted in a continugrooves of the cap, as shown on the right ous groove of the cap, such groove being in Fig. 2. formed by turning or milling in one opera- I wish it to be understood that I am not tion. In this annular groove (or grooves, limited to the example illustrated and de- 65 as the case may be,) I insert an undulated scribed, as modifications may be made withspring. The spring, the ends of which may out departing from the spirit of my invenbe connected so as to form an annulus cortion. responding to the annular groove in the cap, I claim:

has a plurality of undulations which abut As a new article of manufacture, an un- 70 against the bottom of said groove on the one dulated valve spring formed of a straight hand and the valve plate on the other. wire coil.

In this manner, the mass of the spring is Signed at New York city, in the county of doubled as compared with the device above New York and State of New York, this 16th referred to and very little space is required day of February A. D. 1922. for arranging it. At the same time, the valve cap is simplified and its manufacture JOHANN HEINREH HERMAN! V055- facilitated, for the reasons given above. 

